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hershl
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Homework Statement
In cross-section, the beam you are working on is a gantry girder.The maximum bending stress in the girder must not exceed 25MN/m2 and the modulus of elasticity can be assumed to be 210GN/m2.
Determine a suitable size for the beam, selected from the standard sections tables.
Also determine the maximum stress of the chosen beam and its radius of curvature.
Homework Equations
E=σ=M
R y I
The Attempt at a Solution
I have worked out the max bending moment as 36KN and drawn the SFD and BMD
Using the formula
σmax=M*ymax
I
This is where i get stuck as the notes i have are for universal beams and not gantry girders
I'm not after the answer but if anyone can shine some light on how to go about solving this i'd be much appreciative.
The course is HNC electronic and electrical eng. With a mechanical principles module